Fastening device.



A. VASSELU.V

FASTENING DEVICE.

APPLICATION FILED JAN. 11

, Patented Aug. 20,11918-.

' certain new and ANTHONY VASSELLI, F NEWARK, NEW PHONOGRAPH SUPPLY C0., INC.,

cansar, aesrenon, To erro HEINEMAN n coaronarren or new eene.

FASTENING BEWCE.

Application ie-3annary l To all whom t may concern:

Be it known that I, ANTHONY VAesnLnr, a citizen of the United States, and e. resident of the city of Newark, county of Essex, and State of New Jersey, have invented a useful Fastening Device, of

- which the following is a specification.

My invention relates to means for securmg the inner ends of springs to mandrels,

vand more particularly to securing; and retaining the helical springs on the mandrel, sleeve, collar, or ehait of talkingmachine motors.

The invention contemplates the provision of means for supporting and retainino the helical spring on the shat or other suitable means, and to effectively prevent the spring from becoming released from the shaft, oc other means.

A furtherfobject of my invention is to pio vide means by which the end of a helical spring may be secured to itsl mandrel in such a manner that it will be held .against movement'n any direction.

A further object ofthe invention is to provide a fastening device vof the character deserilhed,-whieh is extremely simplein construction, thoroughly reliable and eiiicient securing means, inexpensive to manufacture, and which may be attached'to mechanisms now employed without the use of special tools.

With these and other objects inview, to be more fully set forth hereinafter, the invention consists in the novel construction, oornbination of elements, and arrangement of parts which will be exemplified in the construction hereinafter described in thospecfication and illustrated in the accompanying drawings considered 4together or separately.

ln securing 'a spring to a mandrel or shaft, it is the resent practice to eecure a headed studv to the mandrelv er shaft, and provide the sprin near its inner end with a key hole nana y of pear shape. The large end of the keyhole is of such ay size that the head of the stud will pass through it, andthe smaller end of the hole is of such size that it will fit around the sha-nk of the stud., but will not perm-it the head of the stud to pase tenez-armeni. Patented Aug. G, 1918. maia. terminante@ f inner end thereo'ffwill creep around the'v'l'iandrel until the large end of the keyhole comes under the head of the stud. A jar may now l cause the end-of the spring to be releasedfrom the vStud and when this occ-urs, the movl. tor is useless and will not operate, and iti;- 'must be Sent to a machine or repair shop'. f to have the spring resset. f y

By my invention, thespring is prevented from leaving; the stud lno matter what the position of the stud is relatively to the slot..

I have illustrated my invention in the accompanying' drawings, in which like parte' in all of the several figures are designated by similar reference rharaetern, and in Y whichz* Figure Lis a transverse seetiongof a spring 79 barrel carrying a single eprin gftheeection being taken onthe line-L4 o ZFig. 23.*; f

Fig. 2 is a section on the line 2--2' of Fig. l;

3 is; a detail plan view of the parte in' 75 se arated condition; and ignft is a similar view showingu the parts in position.'

ln carrying*V out my invention', I provide a cup-shaped springn barrel 1 of any well 30 known type; Within the barrel is a helical eprint;n 2, one end of which is secured to the barrel` and the other end of which-is Secured to a sleeve 3 which in this case forms 'a mandrel. The sleeve vtl'is hollow for the-passage of .a siumorting or winding shaft (not shown). The sleeve can be made solid ifde- 7 sired.

Carried on one end'ofthe mandrel Se disk It, the periphery of which is provided' `WI with Spur teeth wherebythe power of. the` Spring may he utilized. The disk 4 4forms l one side oi the barrel and the spring-i8 entirely inelosed. 1,. i

A headed stud 5 is riveted in ositionon/Q the mandrel. lThe inner end of tiiesprinfz is provided with an opening 6 which may hey either pear-shaped, one end being; of a 'size e v edge ot' the keeper.

vided with rounded corners at one end, which merge into the surface, forming one The slot' S is ot' sutlicient width to receive the shank of the stud, andpass under the head ot the studv` but not wide enough to pass over the head ot' the stud, thereby e'lectively securing and retaining the helical spring on the mandrel, and preventing the same. 'from becoming); released from its fastening` on the mandrel. The length of the keeper is approximately equal to the width of the springV which is 'substantially equal to the depth of the springpbarrcl, thusI always retaining the stud in its proper position, and makinar it impossible for the spring' to become nnfastened. A

The outer end of the spring 4is provided with an opening 9 which tits over a staple 10 riveted or otherwise secured to the barrel, and a pin. ll. having,r a length substantially equal to theywidth of t-liespring barrel is inserted between the bow of the staple and the spring. The length of the pin is such that it cannot be dislodged from its position, and the end of. the spring,r will be securely and removably secured to the barrel.

In assembling the parts of the device, the inner end of the spring is laid around the mandrel and the wide portion of the opening 6 is moved down over the head of the stud. The springris then moved around the mandrel until the narrow portion of the opening is-under the head of the stud.A

The keeper is nowy inserted over ythe inner convolution of the spring which contains the opening 6. and between it and the head of the stud, the -slot 8 in the keeper permitting this to he done. The keeper is moved inward until its outer edge is iiuslrwith the edge of the spring. Its inner end will now be in proximity to the toothed disleor some other membersecured thereto.

The outer endoi the spring/is now secured to t e inner circunit'erentialvr wall ot the barrel. ,Th'e; end of theniamlrel now projects ,into or through an'opcningir in the barrel, land the spring is ready Vtor use.

Instead of the opening t', beim;r elongated, as shown, it may be4 circular or any other shape, theionly requirement necessary being' that itniust be of a size sutiicient to permit the passage of the head of the stud.

I vdesire to have it understood that the keeper may be of a form other than that illustrated.

'I have illustrated my invention in connection `with a barrel containing a single spring, bnt desire to have it understood that. the same may be carried out in a multiple spring' barrel, the partitions between the springs preventing movement oi" the keeper 7 and pin l1;

lihave illustrated and described my improved fastening device as applied to a spring motor. for talking machines. I wish it understood that l do not so limit my invention, and that my improved 'fastening may be put to other uses'.

ln accordance with the provisions of the y ,only one of .many that can he employed to attain these objects and accomplish these results.

I have illustrated my invention in connection with a springbarrel having a sleeve 3 surrmindinpl a supporting or winding: shaft, but I` desire to have it understood that this sleeve can be dispensed with and that the su porting or winding shaft can have directly fastened to it the stud member 5.

Having now described my invel'ition, what. I claim and desire to secure by Letters Patent is:-

-l. Al device of the character described` comprising a mandrel, a stud carried by the mandrel, a head on the stud, a member ha ving an opening therein, said openinpr engaging the stud, and a keeper between the member and the head of the stud.

2. A device of the character described, comprising a mandrel, a stud carried by the mandrel, a head on the stud, a spring encircling the mandrehthere being an' opening in the spring, said stud engaging the opening, said opening being of a size` su'l-.

cient to permit the passage ofthe head of the stud, a keeper engaging the ystud be-` tween the head and the sprinor and means r for preventing movement of the keeper relatively to the mandrel.

3; A" device of the character described,

comprising a mandrel, a stud carried by the mandrel, a head on the stud, a spring eni circling the mandrel, there being an opena mandrel, a member carried by the man- 180` Ving in the spring, said stud engaging theI the head thereo a keeper engaging v the barrel, 'a

drei and forming a second head for the barrel, a sprin having one end secured to eaded stud carried by the mandrel, one end of the spring having an elongated opening engaging the stud below stud between the 4head thereof an the spring, said keeper having an open ended slot therein, said slot beiner of less len h than the keeper, the slot in die keeper being arranged at right angles tof the opening in the spring, the lengt of the keeper being so proportioned relatively to the depth of the barrel as to prevent movement of the keeper longitudinally of the mandrel.

5. A device of the character` described, comprising means having a projection on its surface, a member having an opening therein for engaging said projection, and means between the said member and the rojection for effectively retaining 'said mem erin p'o'- sition. Y

6.- In a device'of the character described,

the combination with 'a mandrel having a projection. thereon, a spring provided with an opening for engagement with-said projection, a keeper engaging said projection,

and means for preventing movement of the keeper relatively to themandrel.

7. In a spring motor, a drum carried by a sleeve, a stud onA the sleeve, a coil spring connecting said drum and sleeve, said spring having an opening adapted to engage the stud, and means engaging Said stud'and spring to efi'ec'tively retain said members in position, and prevent the spring from becoming disengaged :from the stud.

8. In aspring motor, a sleeve, a stud onthesleeve, a coil spring connecting said'drum and sleeve, said spring having an opening adapted to engage the stud, means engaging said stud and spring to effectively retain said members in positionand prevent the spring from becoming disengaged from the stud, a member secured to the inner surface of the drum adapted to enfage an opening in the spring, and means engagingv said member and spring to effectively retain the same and prevent the the a drum carried by spring from becoming disengaged from the drum.

4 9. A. device of the Character described, y'

comprising a member-provided with a stud a spring having an. opening therein, sai opening engaging the stud, a keeper be. Vtween the spring and the member, said keeper engaging said stud, a staple fastened to the inner surface of a drum, adapted to engage an opening in the spring, and a pin between 'the sprin and the staple.

1l. A device o the character described, comprisingl a member provided with a stud, aspring aving an opening therein, said opening engaging the stud, and a keeper between the sprin and the member, there being av slot in the eeper for engagement with thestud.y

12. A device of the character described, comprisin a member provided with a stud a spring aving an opening therein,sai opening engaging the stud, 4and a keeper between said spring and the member, the

keeper engaging said stud, the length ofthe keeper being approximately equal to the width of the s ring. A

13. A device'of the character described, comprising a member provided with a stud, a's'pring having an opening therein, said opening engaging the stud, and a keeper betweenxthe'sprin and the member, said keeper being provided with a slot for engagement with the stud, thel length ofthe keeper being approximately equal to the Width oi' the spring, the slot being of shorter length than the keeper. y

Thisr specification signed and witnessed' this Lith day of January, 1918.

`ANTHONY VASSELLLI.

Witnesses v ELIzAnn'rH- M. BALLING.

NORMAN E. 'ZUSL 

